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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Jurnal Teknik Sipil Syntax Literate: Jurnal Ilmiah Indonesia SULUH: Jurnal Abdimas Jurnal Info Sains : Informatika dan Sains Journal of Social Research Jurnal ELIPS (Ekonomi, Lingkungan, Infrastruktur, Pengembangan Wilayah, dan Sosial Budaya) Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Jurnal Pengabdian Papua Jurnal Indonesia Sosial Teknologi Jurnal Ekonomi, Teknologi dan Bisnis Jurnal Portal Sipil Jurnal Median Arsitektur dan Planologi Riwayat: Educational Journal of History and Humanities Jurnal Multidisiplin Indonesia
Bernathius Julison
Universitas Cenderawasih, Indonesia
Humanities Astronomy Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Transportation Veterinary Other

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The Effect of Internal and External Project Factors on the Performance of Road Improvement Projects in Papua Province Arnes Richard Kreeuw; Bernathius Julison; Mujiati; Bahtiar; Dewi Ana Rusim
Jurnal Ekonomi, Teknologi dan Bisnis Vol. 5 No. 8 (2026): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/96n7er83

Abstract

This study aimed to analyze the influence of Internal Project Factors and External Project Factors on the performance of road improvement projects in Papua Province. The research was motivated by the importance of successful road construction projects in supporting regional connectivity, particularly in Papua Province, which faces complex geographical, logistical, and project implementation challenges. Internal factors, including project management, human resource competence, heavy equipment availability, and contractor financial capacity, as well as external factors, such as weather conditions, social factors, and bureaucratic processes, were assumed to influence project performance. The research employed a qualitative approach using a survey method through questionnaires distributed to parties directly involved in road construction projects, including Commitment-Making Officials (Pejabat Pembuat Komitmen or PPK), Technical Activity Implementation Officers (Pejabat Pelaksana Teknis Kegiatan or PPTK), supervisory consultants, and contractors. A total of 196 respondents participated in this study. The data were analyzed using IBM SPSS Statistics 26 through validity testing, reliability testing, classical assumption testing, multiple linear regression analysis, partial significance testing (t-test), simultaneous significance testing (F-test), and coefficient of determination (R²) analysis. The results showed that Internal Project Factors (X1) had a positive and significant effect on Project Performance (Y), whereas External Project Factors (X2) did not have a partially significant effect. Simultaneously, both independent variables significantly influenced project performance. The coefficient of determination (R²) value of 0.434 indicated that the two independent variables explained 43.4% of the variation in project performance, while the remaining 56.6% was influenced by other factors outside the research model.
Analysis of the Effects of Land-Use Changes on Increased Flood Discharge in the Hetuma River Using a Hydrological Approach Unas Tabuni; Mujiati; Bahtiar; Duha Awaluddin Kurniatullah; Bernathius Julison
Jurnal Ekonomi, Teknologi dan Bisnis Vol. 5 No. 8 (2026): Jurnal Ekonomi, Teknologi dan Bisnis
Publisher : Al-Makki Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57185/paqd3g14

Abstract

Changes in land use due to residential expansion and infrastructure development have increased surface runoff, contributing to higher flood discharge in the Hetuma River, Jayawijaya Regency. This study aimed to analyze the impact of land-use changes on increased flood discharge and develop an optimization model for drainage systems to reduce inundation in Wamena City. The research employed a hydrological approach using the Nakayasu Synthetic Unit Hydrograph (Hidrograf Satuan Sintetis or HSS) method and the Rational Method. The data used included BMKG rainfall records from 2013–2024, topographic data, watershed maps, and land-cover maps from 2015 and 2025. The results showed that forest areas decreased from 217.70 ha to 139.39 ha, while residential areas increased from 177.67 ha to 183.17 ha. These land-use changes increased the runoff coefficient, which subsequently contributed to higher flood discharge. Based on the Nakayasu Synthetic Unit Hydrograph method, the design flood discharge of the Hetuma River reached 20.712 m³/s for the 2-year return period and 26.474 m³/s for the 100-year return period. Meanwhile, the Rational Method results indicated that flood discharge increased from 281.970 m³/s for the 2-year return period to 504.967 m³/s for the 100-year return period. Drainage analysis revealed that several channels in the Hom-Hom area were unable to accommodate runoff discharge due to sediment accumulation and limited channel capacity, requiring channel normalization and dimension improvements. Therefore, land-use changes were proven to contribute to increased flood discharge in the Hetuma River, highlighting the need for land-use management and drainage system optimization to reduce flood risks in Wamena City.
Co-Authors Abda Abda Alfian Adie Chandra Amaliah Azis Anastasya Coria Ayomi Annisa Novita Sari Antas H. Sinaga Arnes Richard Kreeuw Bahtiar Bahtiar Bahtiar Dabamona, Junaidi Irianto David Mangallo Dedit P. Sektianto Duha Awaluddin Kurniatullah Duha Awaludin Duha Awaludin Karnitullah Eric Sandi Hutajulu Firman Setiawan Frans Denny Korwa Gire, Emius Hattu, Jacky Hendra Sakti Muslimin Ali Wandan Imbiri, Billian Melianus Indra Syaputra Ira Widyastuti Joni Laorens Miehell Ngutra Lekito, Hanro Lumban Gaol, Martua Jaya Gregorius Manalu, Janviter Maria Joy Waroi Markus Sawaki Marthen Liga Mexan Andry Rumagit Mujiati Mujiati Mujiati Mujiati Mujiati Oktaviani, Theresia W. Patrick Fandy Pither Palamba Poli, Agustina Ivonne Pondayar, Erna Sisca Adelce Puhili, Bertrand Laski Mate Purwoko, Agus Rachman, Ivan Hairil Pratama Rante, Harmonis Raymond Feril Hattu Rudy Mom Rusim, Dewi Ana Safanpo, Apolo Samuel Parlindungan Siregar Suparno Tetjuari, Kristanto Alexander Theresia Wuri Oktaviani Thobby Wakarmamu, Thobby Unas Tabuni Uniplaita, Tiper Wambrauw, Neilzen Wiliam Wayangkau, Helen Giandita widyastuti, ira Yaro Wanimbo Yompi Lani Yulianti Liga Patubungan Yunita Palik